Car-sign exhibitor



H. A. MAYBERRY. CAR SIGNl-:xHlBITofL' APPLICATION FILED AUG. I7. I920.

Patented May 31, 1921.

WGW/'WW EN 7G, gmw@ H A. MAYBERRY.

CAR SIGNEXHIBITOR.

APPLICATION FLED AUG. I7- 1920l Patented May 31, 1921.'

3 SHEETS-SHEET 3.

. To' all whom t maylconcem l "HARRY A. MAYBERRY, or MCLEANSBORO,ILLINOIS.

' CAR-SIGN EXHIBI'JJOR.

` Specification of Letters Patent.

Application filed August 17, 1920. `Serial No. 404,134.

Be it knownthatl, HARRY A. MAYBERRY, a citizen of the United States,and. a resident of McLeansboro, in the county of Hamilton and State ofIllinois, have invented anew and usefulv Car-Sign Exhibitor, of whichtion. y

My invention relates to street or railway car sign exhibitors and has asits all important object the provision of a sign eX- hibiting apparatuswhich will lindicate tothe passengers of a car, the street that is.being approached.

Further, the invention Aprovides an autothe following is a specicalmatic street indicator for street or railway cars whichwill successivelyindicate thevarions streets approached by the carat a sufficientdistance in advance of the streets to give the vpassengers time tosignal that they desire to leave the` car at the next stop. l lTheinvention also provides an electrif callyoperated automatic streetindicator` of this character including a motor and a novel c ircuit`maker and breaker for operating the motor at predetermined 'times.

. With the preceding and other objects and advantages in vmind. theinvention consists in the novel combination of elements, constructionsand arrangement of parts, operations land specific features which willbe hereinafter enlarged upon, claimed and illustratedfin A,theaccompanying drawings,

wherein y i.

Figure 1 isa fragmentary view, partly 1n elevation and partly invertical cross section -of a car equipped with vthe invention;

Fig, 2 is an, enlarged view of an exhibitorremoved from the carpartsbeing broken away;

Fig. 3 is an enlarged fragmentary vertical sectional view ofy thecircuit maker and breaker embodied Ain the invention;

Fig. 4 is a fragmentary front elevation of the trolley pole and shoe andone of a plurality of ycontacts arranged at predeter-l mined intervalsfor engagement by the' shoe; and

Fig.'5 is adiagrammatic view of the electric circuit embodied -in theinvention.

Referring to the drawings in detail wherein like characters of referencedesignate corresponding parts throughout f the several views, thenumeral5 vdesignates a street car ofv usual construction embodying a trolleypole 6 to theupper end of which an outratentea May 31', 1921.

standing electric contact or shoe' 7 is at` tached.

'The trolley or feedwire and connected with this feed wire 8 atpredetermined intervals,

is designated at 8 such as betweenv two l street crossings or stationsand i'ntersect-` -1 lng the feed wire 8, is a branch conductor 9 fromwhich depends a contact 10 to be engaged by the shoe 7 upon advance ofthe car. erably at the forward lend thereof within sight ofthepassengers is a casin 11 provided with a sight opening. l2. l

v orizon tally disposed shafts 13 and 14 are jour-v Arranged within thecar 5 and prefnal'ed in the casing 11, each of which car- `v ries aroller 15, and passing aroundvthese rollers 15 is an endless sheetorbelt 16, hav ing the numbers or names ofthe streets con#r secutivelyarranged thereon in the order in which they are approached. i

Supportedon a 'suitable bracket 17 ar.- ranged at the upper end of thecasing ll'is an electric motor 18 in circuit with thecar lighting systemindicated in its entirety at shaft 20eXtendsv fromthe motor 18` 19. v'Aand has one end journaled in one of the sidev walls of the casing 11,and fiXed to the shaft l i 20 adjacent its opposite end are clutchelements 21 and 22. A relatively longsleeve 23 is slidably mounted onthe shaft 20 and fixed to oneend of the sleeve is a clutch element 24 tobe engagedwith the clutch elei ment 21 andv fixed for rotation with therclutch element 24 is a drive pulley 25 about which a drive belt 26 isengaged, the latter passing around a drive pulley 27 lixedto one end ofthe shaft 13 whereby the lower roller 15 is driven in one direction tomove the endless sheet or belt 16 in onedirection kto successivelyexhibit the signs.

A clutch element 28 is fixed to the opposite end of the sleeve 23 and isadapted for engagement with the clutch element 21 when the pulley 25 isallowed to be idle on the shaft 20. This clutch element 28 carries adrive pinion 29 meshing 30 carried by a clutch element 81 slidable on ashaft 32 arranged below the shaft 20 and having one end journaled in abracket 38 depending from the upper wall of the casing 11 and itsopposite end journaled in a partition wall 34 of the casing 11.

The sleeve 23 carries a depending arm 35 adjacent its inner end which isrigid with the clutch elementl, the latter being engaged with a clutchelement 36 on the shaft with a gear 32 when the pulley 25 is idle, atwhich time the gear 30 is in mesh with al pinion 37 fixed to the shaft14. Slidably mounted in one of the side walls of the casing 11 at itsupper end is asleeve 38 provided with an operating knob 39.V This sleeve3S overlies one end of the shaft and has its inner end enlarged andconnected to the clutch element 24 by a yoke 40.

It will be manifest that upon moving the sleeve 38 outwardly the sleeve23 will be moved' to disengage the clutch elements 21 and 29 and theclutch element 24 engaged I cally secured to both contacts.

with the clutch element 22 to drive the pulley 25 to drive the shaft 13in one direction and that upon moving the sleeve 38 inwardly, drivingconnection will be established between the clutch elements 21 and 29 todrive the shaft 14 reversely through the pinions and gears abovementioned.

ln order to operate the motor 18 at predetermined intervals l provide acircuit kmaker and breaker which includes a disk l41 fixed to rotatewith the shaft 32 and is provided with a laterally disposedcircumferential flange 42. An l -shaped trip 43 is pivoted to the disk42 at its peripheral edge and one leg thereof normally rests upon theflange 42. A spring 44 engages the trip 43 at its pivot and normallyholds the same at a slight tangent with respect tothe disk.

Secured to the bracket 33 is an outstanding plate 45 from which arelatively long electric contact 46 dlepends. A movable contact 47 ispivoted to the plate 45 and is normally urged toward the contact 4G by acontractile spring 48 having its ends Conductors 49 in circuit with thelighting circuit indicated at 19 are electrically connected with thecontacts 45 and 47 while conductors 50 in circuit with the lightingsystem 19 are electriconnected with an electro-magnet 51 supportedon a.bracket 52 secured to one of the side walls of the casing 11. rlhe upperend of the bracket 52 is beveled, and fulcrumed on vthis end is anarmature 53 normally reta-ined in aV horizontal position and in the pathof one leg of the L-shaped bracket 43 by a coil spring 54 having one endsecured to the armature and its opposite end secured to the bracket.

Assuming the parts are in the positions shown in` Fig. 3 and that theshoe 7'carried by the trolley pole 6 engages one of the contacts 10, acircuit will be completed through the coil or magnet 51 attracting thearmature 53 to dispose the forward end of the same out of the path ofthe trip 43, the contact 47 acting under the influence of the spring 48is then engaged with the staf tionary contact 46 completing the circuitthrough the motor 18 to drive either the shaft 13 or 14 depending uponthe relative position of the clutches above set forth.

When the disk 42 has made one complete revolution the sign sheet willhave been advanced sufliciently to dispose one of the signs'in the sightopening 12 and at this time the trip 43 will engage the end of themovable contact 47 and move the same away from the stationary contact 46to break the circuit to the motor'and as the armature 53 has beenreturned to its normal position through the medium of the spring 54, theparts will be held in their normal position ready for the nextoperation.

it is to be understood that the form of my invention herein shown anddescribed is to be taken as a preferred example of the same, and thatvarious changes in the shape, size and arrangement of parts may beresortedV to without departing from the spirit of the invention or thescope of the subjoined claims.

Having thus described my invention, what 1 claim as new and desire tolsecure and protect by Letters Patent of the United States, is: Y

1. A street car sign exhibitor'including a casing, a pair of rollersjournaled therein, an endless sign sheet passing around the rollers, anelectric motor, means between the motor and rollers to advance the sheetin either direction, fixed and pivoted contacts in circuit with themotor and the electrical system of the car, a disk rotated by the motorand normally at rest, a trip pivoted to the disk and normally holdingthe pivoted contact away from the fixed contact, a magnetically operatedelement in the path of the trip and in circuit with the motor andnormally retaining the trip in a position to hold the pivoted contactagainst movement, and means for operatin the magnetically operatedelement at pre etermined times to allow the trip to move to permit thepivoted contact to engage the fixed contact to establish an electriccircuit to the motor to advance the sign sheet, the pivoted contactbeing moved away from the fixed contact by the trip upon completion ofone revolution of the disk and the magnetically 'operated element beingreturned to its normal position to lock the trip against movement.

2. A street car sign exhibitor including a casing, a pair of rollersjournaled therein, an endless sign sheet passing around the rollers, anelectric motor, means between" the motor and rollers to advance thesheet in either direction, fixed andA pivoted contacts in circuit withthe motor andthe electrical systemof the car, a disk rotated by themotor and having a laterally disposed kcircumferential flange, anL-shaped trip pivoted to the disk and having one leg adapted to engagethe flange to limit the movement of the trip in one direction,stationary and pivoted contacts, the pivoted contact being normally heldaway from the fixed contact by the trip, a magnet at one side of' thedisk, a normally horizontally disposed armature havingone end disposedin the path of the lateral leg of the L-shaped trip to hold the sameagainst pivotal movement, and electrical means for attracting thearmature to the magnet at predetermined intervals to permit the trip torock forwardly to allow the pivoted contact to engage the stationarycontact to establish an electric circuit to the motor to advance thesign sheet, the pivoted contact being moved away from the stationarycontact by the trip upon the completion of one revolution of the disk tostop the motor.

3. A sign exhibitor including a casing, a pair of rollers journaledtherein, a sign sheet engaged with the rollers, an electric motoroperatively connected with the rollers, a disk rotated by the motor,electrical means for rendering the motor operative at predeterminedperiods to advance the sign sheet and including fixed and movablecontacts, a trip carried by the disk and holding the movable contactaway from the fixed contact while the motor is inoperative, the trip'being moved away from the movable contactk to permit the latter toengage the fixed conpair of rollers journaled therein, a sign sheetengaged with the rollers, a motor for driving eitherone of the rollersto advance the sign sheet, a circuit to the motor, means for sup-Aplying electrical energy to the motor at predetermined periods, xed andpivoted contacts in the circuit, a disk rotated by the motor, a pivotedtrip carried thereby and normally holding the pivoted contact away fromthe fixed lcontact to render the motor inoperative, and a pivotedmagnetically operated member in the path of the trip and in the motorcircuit and normally retaining the trip in a position to hold thepivoted contact against movement, said member upon being operatedpermitting the trip to move to a position to allow the pivoted contactto engage the fixed contact to complete the circuit to the motor toadvance the sign sheet.

HARRY A. MAYBERRY.

Witness F. C. SmNNnn,

